The word Blockhaded is misspelled against Blockheaded, an adjective meaning "Stupid; dull."
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Blockheaded has vowels 'ea' together mispronounced as 'a'
Word contains consecutive vowels 'EA' in between alphabets blockh & ded is misspelled as 'A'
Wrong Spelling:  blockh-a-ded 
Correct Spelling:  blockh-ea-ded 
Find more incorrect spellings of Blockheaded to spell right way.